1999 Ford Explorer Q&A
1999 Ford Explorer Question: no heat when warming up in driveway only..
check your coolant level first. see if the car heats up by the guage to see if the t stat is working. other than that, it may be a clooged heater core which will have to either be flushed out or replaced. Roy - mastertech6371
same thing happened with me the only thing you need is a thermostat cause when you drive the aintifreeze will speed threw the motor making it hard to get any heat and the thermostat slows down the prosess allowing heat to get threw the heater - sandefur